if (!jsx3.lang.Class.forName("ux.cdb.admin.provRcpPkg.Contract")) {
    /**
     * Define the <code>name of class</code> class.
     * This class inherit from <code>jsx3.gui.Block<code> GUI class.
     */
    jsx3.Class.defineClass(
            "ux.cdb.admin.provRcpPkg.Contract",
            ux.megatron.gui.Block,
            null,
            function (objRoot) {
                /**
                 * This method will be called after UI file has deserialized.
                 */
                objRoot.prototype.onAfterDeserialize = function() {
                }
            }
    );
}